app/crypto-perf: check range of socket id

The socket_id is used as an array index so should be within the range
of zero to max numa nodes. Add a range check to ensure we don't get
excessive values.

Coverity issue: 336812
Coverity issue: 336829
Fixes: 2c59bd32b70d ("cryptodev: do not create session mempool internally")
CC: stable@dpdk.org
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Fan Zhang <roy.fan.zhang@intel.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>